Hey @monsterling.I've noticed a few things since I started using webflow. Some fonts will superscript some things automatically (®, etc). Some fonts don't. One thing I did to get around this issue, since I can't seem to find a superscript control in the tools panel, is to wrap what I want superscripted in a span. You can do that by selecting the text and clicking the little brush icon next to the bold, underline, italicize, etc buttons above it. Once you do that, add a class ("sup", for example), then you could style it like this:

font-size: 0.6em;line-height: 0;position: relative;top: -0.5em;

That gets things close enough for me. You would just make sure that your plus sign is inside of that span.

I'm using @altextreme method. Always have a class named 'index' to superscript bits of text. Going to update it with his properties, haven't thought about using ems to make it relative to the font-size.